got rid of setOldClass

had conflicts with other packages using same old classes (RJSONIO and
"file" old class)
added package_version oldClass to address validObject issues
unitizer store now compared on clean path
minor doc updates
minor vignette update
doc updates
minor whitespace changes
Fixes #2
removing files
fixed show.conditionLists bug
added back docs after failed ignore experiments
doc updates to pass R CMD check
current rdses are good
minor doc updates
version bump